BOSCH BUI255 Intuvia Display Instruction Manual

BOSCH BUI255 Intuvia Display

Safety instructions

Read all the safety information and in-structions. Failure to observe the safety information and follow instructions may result in electric shock, fire and/or serious injury.
Save all safety warnings and instructions for future reference. The term battery is used in these instructions to mean all original Bosch eBike rechargeable battery packs.

• Read and observe the safety warnings and directions contained in all the eBike system operating instruc-tions and in the operating instructions of your eBike.
• Do not allow yourself to be distracted by the onboard computer’s display. If you do not focus exclusively on the traffic, you risk being involved in an accident. If you want to make entries in your onboard computer other than switching the assistance level, stop and enter the appropriate data.
• Do not use the on-board computer as a handle. Lifting the eBike up by the onboard computer can cause irreparable damage to the onboard computer.
• When using the walk assistance, make sure that you can control the eBike and that you can hold it securely at all times. Under certain circumstances, the walk assistance may stop (e.g. if the pedals hit an obstacle or if you accidentally let go of the button on the operating unit). The eBike may suddenly move back onto you or tip up. This presents a risk for the user particularly if there is an additional load on the eBike. When using the walk assistance, do not bring the eBike into situations in which you cannot hold the eBike using your own strength.

Product description and specifications

Intended use
The Intuvia onboard computer is designed to control Bosch eBike systems and display cycling data. In addition to the functions shown here, changes to software relating to troubleshooting and functional modifications may be introduced at any time. Product Features The numbering of the components shown refers to the illustrations on the graphics pages at the beginning of the manual. All illustrations of bike parts except for the drive unit, onboard computer (including operating unit), speed sensor, and the corresponding holders are schematic representations and may differ on your eBike.

1. Display function button i
2. Bike light button
3. On-board computer
4. Holder for on-board computer
5. On/off button for on-board computer
6. RESET button
7. USB port
8. Protective cover for the USB port
9. Operating unit
10. Display function button i on the operating unit
11. Decrease assistance level/scroll down button –
12. Increase assistance level/scroll up button +
13. Push the assistance button WALKa)
14. Locking mechanism for the on-board computer
15. Locking screw for the on-board computer

USB charging cable (Micro A – Micro B)b)

• Not available in all countries
• Not depicted, available as an accessory

Display elements of on-board computer

• Drive unit assistance indicator
• Assistance level indicator
• Illumination indicator
• Text indicator
• Value indicator
• Speedometer
• Gear change recommendation: Higher gear
• Gear change recommendation: Lower gear
• Battery charge indicator

Technical data

On-board computer Intuvia

Product code| | BUI255
Max. USB port charging current| mA| 500
USB port charging voltage| V| 5
USB charging cable A)| | 1 270 016 360
Operating temperature| °C| –5 to +40
Storage temperature| °C| +10 to +40
Charging temperature| °C| 0 to +40
Internal lithium-ion bat- tery| V

mAh

| 3.7

230

Protection rating B)| | IP54 (dust and splash-

proof)

Weight, approx.| kg| 0.15

• Not included with the product as standard
• When the USB cover is closed The Bosch eBike system uses FreeRTOS (see http://www.freertos.org).

Fitting

Inserting and removing the battery
For inserting and removing the eBike battery in/from the eBike, please read and observe the battery operating instructions. Fitting and removing the on- board computer (see figure A) To fit the onboard computer (3), slide it forward into the holder (4). To remove the onboard computer (3), press the locking mechanism (14) and slide the on-board computer forward out of the holder (4).

• Remove the onboard computer when you park the eBike. The onboard computer can be secured in place to prevent it from being removed from the holder. To do so, remove the holder (4) from the handlebars. Put the onboard computer in the holder. Screw the locking screw (15) (M3 thread,8 mm long) from below into the thread provided in the holder. Mount the holder back onto the handlebars. Please note: The locking screw is not designed to prevent theft.

Operation

Prerequisites
The eBike system can only be activated when the following requirements are met:

• A sufficiently charged battery is inserted (see battery operating instructions).
• The onboard computer is properly inserted in the holder (see “Fitting and removing the on-board computer (see figure A)”, page English – 2).
• The speed sensor is connected properly (see drive unit operating instructions).

Switching the eBike system on/off

The following options are available for switching on the eBike system:

• If the onboard computer is already switched on when you insert it into the holder, the eBike system will be activated automatically.
• Once the onboard computer and the eBike battery are fitted, briefly press the on/off button on the onboard computer.
• With the onboard computer inserted, push the on/off button on the eBike battery (bicycle manufacturer-specific solutions are possible when there is no access to the battery on/off button; see the battery operating instructions). The drive is activated as soon as you start pedaling (except if you are using the walk assistance function or if the assistance level is set to OFF). The motor output adjusts to the assistance level set. As soon as you stop pedaling when in normal operation, or as soon as you have reached a speed of 25/45 km/h, the eBike drive switches off the assistance. The drive is automatically reactivated as soon you start pedaling again and the speed is below 25/45 km/h. The following options are available for switching off the eBike system:
• Press the on/off button of the onboard computer.
• Switch off the eBike battery using it’s on/off button (bicycle manufacturer-specific solutions are possible when there is no access to the battery on/off button; see the bicycle manufacturer’s operating instructions).
• Remove the onboard computer from its holder. If no power is drawn from the eBike drive for about 10 minutes (e.g. because the eBike is not moving) and no button is pressed on the on-board computer or the control unit of the eBike, the eBike system will switch off automatically.

eShift (optional)
eShift is the integration of electronic gear-shifting systems into the eBike system. The eShift components are electrically connected to the drive unit by the manufacturer. The separate operating instructions describe how to operate the electronic gear-shifting systems.
The energy supply of the on-board computer
If the on-board computer is in the holder (4), a sufficiently charged battery is inserted in the eBike and the eBike system is switched on, then the on- board computer is powered by the battery of the eBike. If the on-board computer is removed from the holder (4), the energy is supplied via an internal battery. If the internal battery is weak when the on-board computer is switched on, will appear on the text indicator (d) for 3 s. The onboard computer will then turn off again. To charge the internal battery, put the on-board computer back in the holder (4) (when a battery is inserted in the eBike). Switch the eBike battery on by its on/off button (see battery operating instructions). You can also charge the onboard computer via the USB port. To do this, open the protective cap (8). Connect the USB port (7) of the onboard computer via a suitable USB cable to a standard USB charger or the USB port of a computer (5 V charging voltage, max. 500 mA charging current). will appear on the text indicator (d) of the onboard computer.

Switching on/shutting down the on-board computer
To switch on the onboard computer, briefly press the on/ off button (5). The on-board computer can also be switched on when it is not inserted in the holder (if the internal battery is sufficiently charged). To switch off the on-board computer, press the on/off button (5). If the onboard computer is not inserted in the holder, it automatically switches off after 1 minute to save energy if no button is pressed.

• If you are not going to be using your eBike for several weeks, remove the onboard computer from its holder. Store the onboard computer in a dry environment at room temperature. Regularly recharge the onboard computer’s battery (at least every 3 months).

Battery charge indicator
The battery charge indicator (i) displays the state of charge of the eBike battery, not that of the on-board computer’s internal battery. The state of charge of the eBike battery can also be checked on the LEDs of the battery itself. Each bar of the battery symbol on the indicator (i) represents approximately 20 % of the capacity:

• The eBike battery pack is fully charged.
• The eBike battery pack should be recharged.
• The LEDs of the battery charge indicator on the battery go out.
  The capacity for assisting the drive has been used up, and assistance is gently switched off. The remaining capacity is made available for the lighting and the onboard computer. The indicator flashes. The capacity of the eBike battery is enough for about two hours of lighting. This does not account for other consumers (e.g. automatic gearbox, charging external devices at the USB port). If the onboard computer is removed from the holder (4), the last displayed state of charge of the battery is saved. If an eBike is powered by two batteries, the battery charge indicator (i) displays the state of charge of both batteries.
  If an eBike has two batteries inserted into it and both batteries are charged on the bike, the charging progress of both batteries will be indicated on the display (the left-hand battery pack is being charged in the illustration). You can also tell by the flashing indicator on the battery which of the two batteries is being charged.

Setting the assistance level
On the operating unit (9), you can set the level of assistance you want the eBike drive to provide you with while pedaling. The assistance level can be changed at any time, even while cycling.
Note: In some models, the assistance level may be preset and cannot be changed. There may also be fewer assistance levels available than stated here. The following assistance levels are available as a maximum:

• OFF: Motor assistance is switched off. The eBike can only be moved by pedaling, as with a normal bicycle. The walk assistance cannot be activated at this assistance level.
• ECO: Effective assistance with maximum efficiency, for a maximum range
• TOUR/TOUR+:
• TOUR: Steady assistance, long range for touring
• TOUR+: Dynamic assistance for natural, sporty cycling (only in conjunction with eMTB)
• SPORT/eMTB:
• SPORT: Powerful assistance, for mountain biking and cycling in urban traffic
• eMTB: Optimum assistance whatever the terrain, rapid acceleration when starting from a standstill, improved dynamics, and top performance (eMTB only available in combination with the drive units BDU250P CX, BDU365, BDU450 CX, and BDU480 CX. A software update may be required.)
• TURBO: Maximum assistance even at a high cadence, for sporty cycling To increase the assistance level, press the + button (12) on the operating unit repeatedly until the required assistance level appears on indicator (b). To decrease the assistance level, press the – button (11). The requested motor output is displayed in indicator (a). The maximum motor output depends on the selected assistance level. When the onboard computer is removed from the holder (4), the assistance level that was last displayed is saved; the motor output indicator (a) remains empty.

Interaction between the eBike system and gearshifting
The gear shifting should be used with an eBike drive in the same way as with a normal bicycle (observe the operating instructions of your eBike on this point). Irrespective of the type of gear shifting, it is advisable that you briefly reduce the pressure on the pedals when changing gears. This will aid gear shifting and reduce wear on the powertrain. By selecting the correct gear, you can increase your speed and range while applying the same amount of force. For this reason, follow the gear change recommendations provided by the indicators (g) and (h) on your display. If indicator (g) is displayed, you should change to a higher gear with a lower cadence. If indicator (h) is displayed, you should select a lower gear with higher cadence. Switching bike lights on/off On the model on which the lighting is powered by the eBike system, the front, and rear lights can be switched on and off at the same time via the on-board computer using the bike light button (2).

Switching the push assistance on/off
The walk assistance makes it easier to push your eBike. The speed in this function depends on the selected gear and can reach a maximum of 6 km/h.

• The push assistance function must only be used when pushing the eBike. There is a risk of injury if the wheels of the eBike are not in contact with the ground while using the push assistance. To activate the walk assistance, briefly press the WALK button on your onboard computer. Once it is activated, press the + button within 10 s and keep it held down. The eBike drive is now switched on.
  • Note: The push assistance cannot be activated at assistance level OFF. The push assistance is switched off as soon as one of the following occurs:
• You release the + button;
• The wheels of the eBike are locked (e.g. by applying the brakes or hitting an obstacle);
• The speed exceeds 6 km/h. The push assistance function is subject to local regulations; the way it works may therefore differ from the description above, or the function may even be deactivated completely.

Powering external devices via the USB port
The USB port can be used to operate or charge most devices that can be powered via USB (e.g. various mobile phones). Charging requires the on-board computer to be mounted and a sufficiently charged battery to be inserted in the eBike. Open the protective cap (8) for the USB port on the onboard computer. Use a Micro-A – Micro-B USB charging cable (available from your Bosch eBike dealer) to connect the USB port on the external device to the USB port (7) on the on- board computer. Once the electrical load has been disconnected, the USB port must be carefully resealed with the protective cap (8).

• USB connections are not waterproof. When cycling inthe rain, do not connect any external devices and make sure that the USB port is fully sealed by the protective cover (8).
  Important: If electrical loads are connected, this can affect the range of the eBike.

**Displays and configurations of the on-board computer

**

Speed and distance indicators The speedometer (f) always displays the current speed. You can choose from the following functions in the function display (combination of text indicator (d) and value indicator (e)):

• < Clock>: Current time
• < Max. speed>: Maximum speed achieved since the last reset
• < Avg. speed>: Average speed achieved since the last reset
• < Trip time>: Journey time since the last reset
• < Range>: Estimated range of the available battery charge (at constant conditions such as assistance level, route profile, etc.)
• < Odometer>: Total distance traveled with the eBike (cannot be reset)
• < Trip distance>: Distance traveled since the last reset To switch between display functions, press the i button (1) on the on-board computer or the i button (10) on the operating unit repeatedly until the required function is displayed. To reset the , and <Avg. speed>, switch to one of these three functions and then press the RESET button (6) until the indicator is set to zero. This will also reset the values of the other two functions. To reset the <Max. speed>, switch to this function, and then press the RESET button (6) until the indicator is set to zero.To reset the , switch to this function and then press the RESET button (6) until the indicator is reset to the value of the factory setting.
  If the onboard computer is removed from the holder (4), all values of the functions are saved and can still be displayed.

Displaying/adjusting basic settings
The basic settings can be displayed and changed regardless of whether the on- board computer is inserted in the holder (4) or not. Some settings can only be viewed and changed when the HMI is inserted. Depending on the equipment of your eBike, some menu items may not be present. To go to the basic settings menu, simultaneously press the RESET button (6) and the i button (1) until